There isn't any materials, labor, technology in any group set worth the kind of money they rip us off for, but it's the cycling world, and the cycling industry thinks that most cyclists are filthy rich, and that most of us are just plain stupid with our money, and will believe any marketing BS and go buy that expensive stuff.
I don't care what anyone says, but no one can tell me that these group sets, like Campy Super Record, or Shimano Dura Ace, has more technology, more labor, more money to buy the materials to make them then a Yamaha V Star 250 that costs less than $5,000 brand new, heck you can even get a brand new BMW G310R for under $5,000...and it's German made! The other weird thing about todays group sets, they don't even have the artistry of the expert machining skills that the old 60's and 70's era derailleurs had, these new high end derailleurs are just stamped out 4 layers carbon fiber, and they all have that disgustingly ugly industrial look.
Now I have to go hide from the rocks that are going to be thrown at me for saying that stuff here.